1 /* 2 * Copyright (c) 2015, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 #include "precompiled.hpp" 25 #include "gc/z/zPage.inline.hpp" 26 #include "gc/z/zPhysicalMemory.inline.hpp" 27 #include "gc/z/zVirtualMemory.inline.hpp" 28 #include "utilities/align.hpp" 29 #include "utilities/debug.hpp" 30 31 ZPage::ZPage(uint8_t type, ZVirtualMemory vmem, ZPhysicalMemory pmem) : 32 _type(type), 33 _numa_id((uint8_t)-1), 34 _seqnum(0), 35 _virtual(vmem), 36 _top(start()), 37 _livemap(object_max_count()), 38 _physical(pmem) { 39 assert(!_physical.is_null(), "Should not be null"); 40 assert(!_virtual.is_null(), "Should not be null"); 41 assert((type == ZPageTypeSmall && size() == ZPageSizeSmall) || 42 (type == ZPageTypeMedium && size() == ZPageSizeMedium) || 43 (type == ZPageTypeLarge && is_aligned(size(), ZGranuleSize)), 44 "Page type/size mismatch"); 45 } 46 47 ZPage::~ZPage() { 48 assert(_physical.is_null(), "Should be null"); 49 } 50 51 void ZPage::reset() { 52 _seqnum = ZGlobalSeqNum; 53 _top = start(); 54 _livemap.reset(); 55 } 56 57 void ZPage::print_on(outputStream* out) const { 58 out->print_cr(" %-6s " PTR_FORMAT " " PTR_FORMAT " " PTR_FORMAT " %s%s", 59 type_to_string(), start(), top(), end(), 60 is_allocating() ? " Allocating" : "", 61 is_relocatable() ? " Relocatable" : ""); 62 } 63 64 void ZPage::print() const { 65 print_on(tty); 66 }